<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<script src="java76.js"></script>
		<script>
		  alert("welcome to ES world");
		</script>
	</head>
	<body>
		<button type="button" onclick="alert('你好，我是js')">按钮</button>
	</body>
</html>
